The effects of anisotropic pressure on MHD equilibrium are investigated, particularly focused on the position of the magnetic axis. MHD equilibria are numerically calculated under anisotropic pressure conditions using an extension of the VMEC code which is widely applied to obtain three dimensional MHD equilibria. This code is called ANIMEC. A bi-Maxwellian model was invoked in this code in order to treat anisotropic pressure driven by energetic particles without any inconsistency. To investigate the properties of the plasma with p∥ > p⊥, numerical computations under various conditions are performed with a LHD magnetic configuration using the ANIMEC code. Comparisons of the plasma behavior between an analytical model that considers p∥ and p⊥ to be constant on each flux surface and ANIMEC numerical results will be discussed.
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机译:研究了各向异性压力对MHD平衡的影响,尤其着重于磁轴的位置。 MHD平衡是在各向异性压力条件下使用VMEC代码的扩展进行数值计算的,该扩展被广泛用于获得三维MHD平衡。此代码称为ANIMEC。为了处理由高能粒子驱动的各向异性压力而没有任何不一致,在此代码中调用了双麦克斯韦模型。为了研究具有p ∥ sub p ⊥ sub>的等离子体的特性,使用ANIMEC代码使用LHD磁配置在各种条件下进行数值计算。讨论了将p consider sub>和p ⊥ sub>在每个通量表面上保持恒定的分析模型与ANIMEC数值结果之间的等离子体行为的比较。
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